{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "473506993",
    "entityType": "User",
    "nonce": "0x59d5dac78d627561a6e5e40c0aa134ec5abffd0e4e6897ebceee7a504384c2ae",
    "signature": "0x29dbf11beccc7632dd2e19c70cd420b9666fb6b119174cea681f03d6b60edf1450f2ca8ff642256ea8a3b1e9bda3adbe757ca3d544fffc4ea6c2e33119d697281c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}